Ch.1

Steps in checking tire pressure

1. Make sure tires are at ambient pressure 2. remove valve cap,3. keep gauge straight, firmly press onto valve. 4. check the reading, 5.adjust the pressure. 6.recheck pressure 7. replace cap

_________ is used on some truck applications to aid in carrying heavier loads.

Air suspension

Technician A says puncture damage can always be repaired. Technician B says bulges and blisters are commonly caused by overheating and overinflation. Which Technician is correct?

B

Technician A says that wheels should be balanced at every rotation. Technician B says that the wheels should be balanced when any tire repair or replacement is performed. Which technician is correct?

B

Uses 2 or 4 layers of nylon cord wrapped diagonally across the tire.

Bias Ply

Technician A says that the wheels can sometimes be rebalanced by aligning the tire on the rim as specified by a balancing machine. Technician B says that if a wheel is statically unbalanced, the wheel can be rebalanced by adding weights to the opposite side of the spot that is unbalanced. Which technician is correct?

Both

Made from a hard rubber compound to hold high tire pressures and carry heavy loads.

Heavy Duty Truck

The rubber in these tires is softer and more pliable; designed for higher speeds.

High Performance

_________ suspension systems have wheels that mount separately using control arms and springs.

Independent

In this type of tire, the cords run perpendicular to the tread and parallel to each other.

Radial Ply

Tires that do not use air; typically used on heavy equipment.

Solid

Can only be driven approximately 50 miles at a maximum of 50 mph.

Space Saver Spare

Technician A says radial force differences result from material variations in the tire and rim. Technician B says radial force variation may be corrected by aligning the tire on the rim as instructed by the appropriate balancing machine. Which technician is correct?

both

Technician A says that tread patterns vary from tire to tire. Technician B says radial ply tires are the most common tires used on passenger cars. Which technician is correct?

both

__________ suspension systems carry the movement of one wheel to the other wheel on the same axle.

dependent

A __________ suspension system has a channeled beam that allows for some twisting motion.

semi-independent

Technician A says air suspension can be used to give a smoother ride. Technician B says an independent suspension system can assist in carrying more weight. Which technician is correct?

tech A

Technician A says to check manufacturer's service procedures before rotating tires. Technician B says you can always rotate tires clockwise around the vehicle at the first sign of wear. Which technician is correct?

tech A